CVE-2026-37229

HIGH

FlexRIC 2.0.0 - Unauthenticated Denial of Service via Malformed ASN.1 PER Decoding

Title source: llm
STIX 2.1

Description

FlexRIC v2.0.0 contains a reachable assertion in e2ap_create_pdu() triggered when ASN.1 PER decoding fails. A remote unauthenticated attacker can send any non-PER byte sequence (e.g., a single 0x00 byte) over SCTP to the near-RT RIC (port 36421) or iApp (port 36422) to crash the process via SIGABRT. The assertion is reached before any protocol-level validation occurs. All three E2AP protocol versions (v1.01, v2.03, v3.01) are affected.

Scores

CVSS v3 7.5
EPSS 0.0043
EPSS Percentile 34.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-617
Status published
Products (1)
mosaic5g/flexric 2.0.0
Published Jun 01, 2026
Tracked Since Jun 02, 2026